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Old 08-05-2009, 06:47 AM   #1
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2005 22' International CCD
Woodland Park , Colorado
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Converter remains on bulk charging

My converter will not switch off bulk charge mode. It is a WFCO 9845 converter (Parallax upgrade kit purchased from Randy at BestConverter.com about 2 years ago).

Everytime the converter is on and charging batteries it is running at 14.4 volts and the fan is going full time. The batteries are completely full.

I have switched it on and off a number of times, unplugged it and plugged it back in and it still does the same thing. A few times it has gone into absorption stage charging (13.6 volts) for a period of time but then later will switch back to 14.4v.

I did have it disconnected recently to do a floor renovation. However, I am sure I connected everything back correctly and it was working after the floor mod. It works fine running the 12v electrical in the trailer when the batteries are disconnected; as soon as I connect the batteries it jumps back to 14.4 and stays there.

My guess is the microprocessor inside the converter is shot. I have a call in to Randy at BestConverter to see what his thoughts are but wanted to see if anyone else has had a similar problem.

Thanks in advance for any insight anyone may have. jon
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Old 08-05-2009, 09:09 AM   #2
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If you look at where te converter was made you will understand the problem. They are known for excessive noise from plate separation and short life.

Consider a Progressive converter with the Wizard Monitor.
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Old 08-08-2009, 10:34 AM   #3
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Quote:
Originally Posted by HowieE View Post
If you look at where te converter was made you will understand the problem. They are known for excessive noise from plate separation and short life.

Consider a Progressive converter with the Wizard Monitor.
Yep. I think you're right. Tried a number of things, desconnecting, reconnecting, etc and it looks like the converter is shot.

Will look into a Progressive....

Thanks, jk
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Old 08-08-2009, 10:44 AM   #4
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In 2001 I replaced my univolt with a Progressive and Charge Wizard in my 1978 Ambassador. Never a problem...works flawlessly. I highly recommend one. Very easy install.
Tom
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